Question

A research scientist estimates that the human body contains 88 pounds of water for every 100 pounds of body weight. At this rate, estimate the number of pounds of water in a college student who weighs 225 pounds.
? lb

Answer 1

Any ideas?

Answer 2

no i am very confused about this question

Answer 3

What percentage of 100 is 88?

Answer 4

88%

Answer 5

Yes. And we are given that the water weight is always 88% of the total weight, whatever that weight might be.

Answer 6

yes

Answer 7

So, what is 88% of 225?

Answer 8

198%

Answer 9

88% of 225 pounds is 196 pounds, yes. (Note that it's not 198%, but 198 pounds.)

Answer 10

ohhh i c i understand

Answer 11

Good. :)

Answer 12

so its just 196 pounds?

Answer 13

196 lbs

Answer 14

Yes. I imagine you would find the question a lot easier to answer if, for instance, the question was, "Half the total weight of a person is water weight." Then, instead of 88%, we just take 50%, or one-half, of the total weight.

Answer 15

ya it was not that hard and thank you :)

Answer 16

Welcome.